Digital water gauge used in a hands-free hydration system



FIG. 1 is a front perspective view of a digital water gauge showing my new design;

FIG. 2 is a back perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a back elevational view thereof;

FIG. 5 is left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof. 

The ornamental design for a digital water gauge used in a hands-free hydration system, as shown and described. 